[GHC] #11535: Derived instance of Read/Show causes runtime exception for infix Unicode value constructors

[GHC]

#11535: Derived instance of Read/Show causes runtime exception for infix Unicode
value constructors
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        Reporter:  nushio            |                Owner:
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  7.10.3
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:  #1544, #11529     |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by nushio):

 The condition for this bug is that the infix value constructor has at
 least one Unicode character. The prefix value constructors with Unicode
 characters, as well as infix value constructors without Unicode
 characters, works fine.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11535#comment:1>
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